LAPTOP PROBLEM 5 SECONDS - Acer Aspire One PC Notebook

1. Disconnect anything that is connected to your laptop. Usb Flash discs, External HDDs, Wireless Devices using dongles etc.
2. Make sure that your device does not receive any power i.e. Disconnect your ac cable, and remove battery from your laptop.
3. Hold down the power button for 5 seconds. This would drain remaining power from your laptop. But as the power cable and the battery are disconnected, you should not expect anything to happen.
4. Identify where your RAM is located under your laptop. Unscrew the cover off, then remove the RAM from your laptop. Replace the cover temporarily.
5. Flip over your laptop. Connect your power cable to the laptop, NOT THE BATTERY NEH! Then press the power button. Sometimes your laptop will make long beeps to let you know the RAM is not inserted in your laptop. But nothing will happen on your monitor because it needs RAM to show you something.
6. After those beeps, remove the power cable. Press the Power Button to drain remaining power on your laptop. Flip the Laptop and replace the RAM you have removed earlier.
7. Insert your power cable and try restarting your laptop and see what happens. I am sure by now you should have some response on your laptop monitor.

NB: While performing the above mentioned, remember PC or Laptop parts are delicate. Even static electricity can damage them. Thus before handling your laptop components, make sure you touch the wall or any large metal subject from time to time to discharge the static. Wear 100% cotton cloths as you are working on it. Bare feet even better to discharge the static

I had a similar problem with my laptop battery not to long ago, I found this article (Below) explaining many different reasons and situations why a laptop may not be charging. For me my chord was damaged and I had to replace it.
http://www.pcmag.com/article2/0,2817,2404104,00.asp

check the fans

Turn off the laptop, close the lid, flip it upside down and rest it on a flat surface.

Locate the cooling fan, which is under the vents on the bottom of the laptop.

Spray the compressed air can inside the vents for 5 to 10 seconds.

Change the air direction until all the dust is cleared.

check you CPU make sure its securely seated and has thermal grease

http://www.hardwaresecrets.com/article/Thermal-Compound-Roundup-February-2012/1490

hope this helps

If you incorrectly entered a power-on password three times the computer will lock down. You will have to hold the power button for 5-10 seconds, wait at least 10 seconds then power your laptop and enter the correct password.

Try another battery if possible in the laptop. If it charges up the battery the whole way then that means your original battery is bad. If you still can't charge another battery for more then 5 seconds then that means the adapter is bad. If you get another adapter and still can't charge, then the motherboard is starting to go bad at that point.

You can perform a hard reset by pressing and holding the powered button for 5 seconds.
Please leave feed back if this helped you :)

remove the memory then make a clean or replace a new memory

You have all the simpthoms of an overheating laptop.
For starters, get a vacuum and **** all the dirt from the fan or fans on the back/ bottom of your laptop.
Then turn on your laptop. It should stay longer than 5 seconds.
If this solves your problem, then you are lucky.
If not, you'll need to have your laptop serviced, and clean the heat sink, and have reapplied the heat transfer compund on the processor.

Not a big deal, and not that expensive either.

If this answer helps, please don't forget to rate.

take the cmos battery out and put in the power cable, and start the machine

Most proably it is a main board problem. Contact authorized service center.